William van de make



(No Model.)

W. VAN DE MARK.

FOUNTAIN PEN.

No. 366,047. Patented m 5, I887.

E I A UNITED STATES PATENT F F ICE.

\VILLIAM- VAN DE MARK, OF PHELPS, NElV YORK.

FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 366,047, dated July 5; 1887.

(No model.)

To all whom it may concern:

Be it known that I, WILLIAM VAN DE MARK, a citizen of the United States, residing at Phelps, in the county of Ontario and State of New York, have invented certain new and useful Improvements in Fountain-Pens, of which the following is a'specification.

. The object of my invention is to construct a fountain-pen in which the ink is delivered to both sides of the pen in such a manner that it is freely and none too freely taken up by the pen when in use, and so arranged that all danger of blotting is avoided in the ordinary and proper use of the pen.

Referring to the drawings accompanying this specification, Figure 1 represents a top view of my improved pen; Fig. 2, the under side of the pen; Fig. 3, an enlarged side section; Fig. 4, a cross-section through the line X Y, and Fig. 5 a detail view.

Similar letters refer to like parts in all the v1ews..

'A is the ink-reservoir; B, the pen'chamber. The part c, Fig. 3, of the pen-chamber fits into the lower part of A, and, being in free communication therewith, forms a continuation of the reservoir proper.

D represents an ordinary pen inserted in the pen-chamber. The lower part of the pen chamber terminates in two penshaped points or lips, E and F, coming quite near the points of the pen, between which the pen is inserted and held, the upper point, E, being a little longer than the under one, F, as shown in Fig. 3. To obtain greater flexibility, or to allow the free action of a very elastic pen, I sometimes prefer to construct the point E of the slender shape shown in Fig. 5. The-under side of the pen-chamber is cut down to the narrow form shown at G in Fig. 2 before it terminates in the point F.

At H, Figs. 2, 3, and 4, is shown an'iinpou tant part of my invention, and is what I term the overflow ink'chamber. It is made of the general form shown in the drawings, eX-

a view of from blotting while in use, which it effectually does. It will be noticed by an inspection of Fig. 3 that in the pen-chamber B the channel for the flow of ink below the pen is larger than above it, serving thus to more readily conduct the surplus ink into the overflow chamber, and also to permit of its ready re turn to the reservoir when desired.

The operation of my improved fountain-pen will be readily understood.

proper position for writing, the ink flows down into the pen-chamber and, passing between the lips E and F, is delivered to both sides of the pen slowly and gradually as required for use. Should the ink flow too freely, it is retained by' the overflow ink-chamber H. The action of the overflow ink-chamber is found exceedingly efficient in actual practice, and all danger of blotting is avoided in the ordinary and proper use of the pen. The surplus ink will slowly accumulate in the overflow ink-cl1a1nbcr and will be retained there; indeed, the pen may be suddenly inverted and the ink will not be spilled, but is immediately drawn into the pen chamber and reservoir, and the overflow ink'chamber is emptied.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. In a fountainpen, the overflow ink-chamber H, consisting of a lip constructed of the general form shown, placed on the under side of the pen-chamber B for the purpose of retaining the surplus ink, arranged in connection with the said pen-chamber Band reservoir A, substantially as described.

2. A fountainpen comprehending in its construction the pen-chamber B, with its penshaped points or lips E F, constructed as de- The reservoir A being filled with ink and the pen held in the scribed, serving the double purpose of holding the pen and gradually feeding the ink to the point of the same upon both sides, and the overflow ink-chan1ber H, arranged, as described, for the purpose of retaining the surplus ink and returning it to the pen-chamber and reservoir, all arranged in combination with the reservoir A, as and for the purposes described.

\VILLIAM VAN DE MARK.

\Vitnesses:

S. S. PARTRIDGE, CHARLES H. HOLBROOK.

IOO 

